All highways in Beaver, Harper, Ellis, and Woodward are closed until further notice, the Oklahoma Department of Transportation reports.

Whiteout conditions have halted road clearing efforts, according to an ODOT news release early Tuesday. Crews are out in Cimarron, Texas, Woods, Alfalfa and Major counties, and they are reporting slick and hazardous roadways and are treating roads and plowing as needed.

The Oklahoma City metro are is reporting some slick spots. Drivers are cautioned to be extremely careful while traveling in the area.

The following highways are closed Tuesday:

Garfield/Alfalfa Counties: SH-45 is closed between the Garfield county line and SH-8 in Alfalfa County.

Canadian Co: US-270 is closed between Calumet and Geary in Canadian County.

Harper Co: Northbound US-283 is closed between US-64 in Harper County and Englewood, Kansas.

In western Oklahoma, roadways are slick and hazardous, and all highways are closed in Blaine, Beckham, Dewey and Roger Mills counties. Crews are sanding and salting areas and clearing roadways as needed. The low visibility is periodically halting road clearing efforts. Crews will resume as soon as conditions warrant. Travel there is also strongly discouraged at this time.